Preparation of pyridine-stretched 2'-deoxyhypoxanthosine phosphoramidite
作者:Russell Clayton、Michael L. Davis、Wei Li、William Fraser、Christopher A. Ramsden
DOI:10.24820/ark.5550190.p010.075
日期:——
Pyridine-stretched2!-deoxyhypoxanthosine (strH) phosphoramidite was prepared in eight steps from Hoffer’s sugar (2!-deoxy-3,5-di-O-(p-toluoyl)-α-D-erythro-pentofuranosyl chloride). Improved synthesis of the Hoffer sugar was achieved without need for distillation or chromatographic separation of intermediates, or use of gaseous HCl. Conditions were optimised to provide a key nitrile intermediate for